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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
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Your heart beats over 36 million times a year.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.